Answer:
Yes, it does.
Explanation:
I mean, having some sort of audio feedback is obviously useful for a user.
(If it's a media-content-viewer, of course you need sound)
We should discuss some cases here:
1. In case it's a game, sound enhances the experience of the virtual world, by creating what is called an "ambience", or the acoustical surroundings of the environment since you can perceive stuff without the need to look at it.
2. Other apps: It makes the app seem more friendly and comfortable to use, especially if partnered with an animation
